Improvement in box-operating mechanisms for looms



X'ATENTEI] JAN 31 1871 Homes WYMAN'S HORACE WY AN'S M PROVEMENT m Looms.

)/ma 11/ M4414 M INVENTOR HORACE WYMAN, or wononsrnn,

MASSACHUSETTS.

Letters Pbtent No. 111,417, dated January 31, 1871.

. IMPROVEMENT IN BOX-OPERATING M ECHANlSMS FOR LOOMS;

The Schedule referred to in these Letters Patent and making part of the same.

To all whom. it may concern Be it known that I, H0t'tAo1-1 XVYMAN, .of \Vorcester, in the county of Worcester and State of Massachusetts, have invented a certain new andiise ful Improvements in Looms; and I do hereby declare that the following, taken in connection with the drmving which accompanies and forms pargtofothis speciiication, is a description of my inven' i on' sufficient to enable those skilled in the art to practice it.

The invention relates to the hox-changiug mechanism of fancy looms, the object of the invention being l a plLWlSlOll for cifectmg from a pattern-cylinder or chain the change from anyone box to any other in a series of four or more; the transfer, whethcrfronrone box to an adjacent one, or to-ouej most remote from it,

being effected in the same time, and-the operation of the mechanism being always reliable.

Referring to the drawing-'- Figure l is aside elevation. Figure 2 is a front elevation.

Figure 3 is a sectional elevation of one of the compo-nent parts of the box-operating mechanism.

' Figure 4 is a plan of a part of the same.

Figure 5 is a plan of the end piece of lathe supportiug the boxes.

Figure 6 is a back elevation of fig. 5, showing the slot for picker, with picker-rod removed. v Figure 7 is a side view of arrangement ior adj usting the boxes wit-lithe race.

a is a loom-sidc. b, a crank-shaft.

0 c c c, the series of shuttle-boxes,supported do a vertical rod, (1, whiehlatter is attached by links etc;

the outer extremity of a box-lever, f, hung at 1 f is a secondary lever hung at g on the opposite extremity of box-lever f. .It is hymeans of the oscillation of these compound-levers on their centers g and g that the requisite shuttle-box is brought opp'o- I site to the shuttle-race. i-

By the upward or downward motion of the connecting-rods h and. v :ommanded by the pattern-chain i, suspended on shaft, i, intermittent rotary motion istransmitted to the pattern-chain by the connecting-rod i, ratchet-whcel i bell-lever i, by means of horizontal arms of bell-crank levers k and h, the other extremities of which are obliged by the pattern-chain to assume one or the other of the positions indicated by dotted and by fulllincs in fig.'3.

Intermittent rotarv-mot-ion is imparted to the two pinions (shown by dotted lines at l and l, in fig it by the large gear P, keyed on the same shaft as theaterwheel I", which is actuated by the two studs m and re on the-wheel 1 (which may be denominated the stud or spur-wheel receives its motion from the pinion Z on crank-shaft b.-

The proportions of the gears l l P are such that ,one intermittent movement of l imparts exactly one,

revolution to thcpinions l and Z. l

When the bell-crank levers 7-; and It, above referred to, are in the position indicated in dotted lines, fig. 3, the piniorrl revolves without carrying with it the cranks a and ahead, when, on the coutrary,=it is in position indicated by the full lines, the rotation of the pinion-causes the cranks to make exactly one-halt of a revolution. 1

The cranks n a are also set in sueha manner .that

they assume, ultimately, but two positions, one'raiscd, as at n, or the other lowered, as at n; i

The mechanical parts effecting this result are more clear-Ty shown in figs}; and 4, consisting,

First, in the pinion l, unitedwith the bevel-wheel r o by a sleeve, 0, and running loosely on'a shaft, 0

Secondly, in the disk 1), keyed on the shaft '0, and containing ,the small bevel-pinion gearing" with bevel-wheel o and tnrning; freely on its axis within the said disk;

'lhirdly, in the disk-plate and bevel-wheel q cast in one and running loose on the shaft 0' and Fourthly, in the crank 11, formed on the shaft 0. When, during the rotation of land 0-, the bell-crank lever is is in the position indicated in fhll lines, the disk gbeingthereby held stationary, the wheel a will communicate rotary motion to 1) and q, but the shaft 0' and its crank. it will remanistatiouary. \Vhcn, on the contrary, the lever It is locked in the loose disk q,

as,sho\vn in fullilines, the disk qwill not be rotated; but the fast disk 19 and the shafto will be turned Y,

.exactly onc half a turn:

5 h It" are springs attached to the hell-crank levers I: and It, and tothe framing of the loom for the pur- Lphse of en ging the bell-crank levers w'iththe disk p'when .not raised by the pattcrn-chain,

( will thus beQseen'that the pinion's Z Z are constaiitly rotating intermittingly, (at each turn of the crank-shaft, cries-fer second-turn if boxes are on one side only;) biitlthatiitjdepends on the position of the bell-cranklevers-1sR, which are under command of the pattern-chai whether they rotate the cranks n n and therebye irereierzae or depress the series of I will now describe how the elevation or the depressio'uot' the eonnectingqfods it h, by the cranks a n3, act'on the box-lever f -insuch a manner as to ring the requisite shuttle-box of the series oppdsite tie shuttle-race. It is the box 0 which is shown in ne with the shuttle-race.

If, in the first place, it is the crank n used by its half revolution upward, then each rod i acting on the compound or auxiliary lever f forces t to assume a horizontal position; and since this lever s articulated on the box-lever f at g it depresses the root end of said lever f to the extentof one box, has bringing c opposite the shuttle-race. I

In the second case if the crank it is caused to reverse its position the boxes will be moved two divisions, thus. bringing ciopjaosite'the shuttle-race, the crank '11 remaining in position, as shown in fig .1. In the third case, if the cracks n n being in the same position, either up or down, are both reversed simultaneously, the boxes will be moved three'divisions, the boxes being at 0 will move to 6',

1n the fourth case, one crank being up and the other down, and both being reversed simultaneously, the series will be moved one compartment, 0 being in line with the shuttle-race, the movement bringing 0 into that position.

It will thus be seen that by the combined action of these cranks any of the four compartments of the shuttle-boxes can at any time be brought opposite the race.

It will also be further understood thatby multiplying these .cranks and their concomitant parts any increased range ofcompaitments may be used and each compartment raised orlowercd by apositive motion, all their motions beginning and ending'at the same period with regard to the 'rotative crank-shaft of the loom. 1

In the disks pand=qtliemortises by which they are locked or held from rotating by the lcverk are made with beveled or-incliued sides 20 w, fig. 4, as isalso the lower endot 7c, the lever being held in that of disk 1) by the spirai spring is, or in the recess of the disk qby the wire j and spiral spring j as required by the pattern-chain.

It will thus be seen that the cracks can which is reoperation of the inclined sides w forcing the springs (j or k, as the case may require,) to give way. The inclined sides in disk q will also force the spring j to give way if anyunns'ual resistance comes upon the boxes while in the act of moving such, as the shuttle partly entering the boxes, the picker remaining in the boxes instead of retiring to the outer end, 850., thus preventing any breakage of parts during the running of the loom.

In figs. 2 and 7 the vertical rod 41 is shown with a continuation, 1', provided with a slot, 0', in which the stud in thelower end of the connector 0 is fitted so that the part r, and'with itthe boxes 0 c c a, may be adjusted vertically by the screw s and there be securely clamped by the screw andnut t of the stud.

It will thus be seen that by the combined action of s and t the series of shuttle-boxes maybe accurately adjusted, vertically, with the race-board of the lathe.

In figs. 5 and 6 is shown detached views of the frame or support for the series of shuttle-boxes with the usual back a to support the picker-rod u and slot at, for picker to move in, but from the outer end it is provided with a return-pieeeflg in front of the boxes,

. returning toand connected with the'fr'ont of the lathe,

leaving it entirely open at the. bottom, thus giving 1ncreased strength to the frame or support, and also al.- lowing any number of boxes to be used with a cornparatively light frame or support.

I claim as of my own invention-- 1. The pinion-and-spur or stud-wheel, the star-wheel and all the gearing therefrom, which operate the cranks through the government of the pattern-chain and its connections, when 2 ll are constructed and combined with the connectors and compound-levers to actuate the shuttle-boxes, as described.

2. The combination of the'disks p and g, the bell-crank levers k and k, and springs k f, as and cess for the purpose described.

' HORACE WYMAN Witnesses:

-J-. A. WARE,

153A. klowann.

audit-he boxes adjusted by hand by the wheei e0 the 

